Journal of Shanghai University(Natural Science Edition) ›› 2018, Vol. 24 ›› Issue (4): 503-511.doi: 10.12066/j.issn.1007-2861.2010

• Digital Film and Television Technology •     Next Articles

An old film restoration method using subframe quilting

XIA Tianran1,2, DING Youdong1,2(), YU Bing1,2, HUANG Xi1,2   

  1. 1. Shanghai Film Academy, Shanghai University, Shanghai 200072, China
    2. Shanghai Engineering Research Center for Motion Picture Special Effects, Shanghai University, Shanghai 200072, China
  • Received:2018-03-09 Online:2018-08-31 Published:2018-08-31
  • Contact: DING Youdong E-mail:ydding@shu.edu.cn

Abstract:

Unlike noise, spots and scratches, widespread damage is the major difficulty in old film restoration. Considering that old film sequences contain rich frame information, a subframe quilting method for widespread damage in old films is suggested here. Before repair, the first step is to segment lens and preprocess frame screen. After selecting the forward and backward reference frames, we now choose the damaged subframes and the corresponding reference subframes. Then, we interpolate the intermediate subframes according to two reference subframes. Finally, we quilt the intermediate subframe into the damaged area, and complete the widespread damage restoration. This method not only solves the problem of widespread damage, but also assists old film repairers with preliminary repair.

Key words: old films, frame completion, bidirectional frame interpolation, patch match, image quilting

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